T8 -level high -strength chain, broken strength ≥800MPa. The surface treatment is commonly seen according to customer requirements: polishing (primary colors), black, electrophoclared, electroplating, hot galvanized, painted paint, hanging plastic, galvanizing, etc. Our factory chain uses full -automatic equipment production and mature chain technology, and uses high -quality alloy steel. In addition to standard spacing, different pitch chains can also be made according to the needs of customers. The specifications of the chain are 4mm, 6mm, 7mm, 8mm, 13mm, 18mm and other specifications.